Bell-pull



UNITED STATES PATENT OFFICE,

JOHN B. BOYLE, OF BALTIMORE, MARYLAND.

BELL-PULL.

SPECIFICATION forming part of Letters Patent No. 285,961, dated October 2, 1883.

Application filed July 30, 1883.

To a, whom it 7na7 concern Be it known that I, JOHN B. Eovmc, of the city of Baltimore and State of Maryl and, have invented certain Improvements in Bell-Pulls, of which the following is a specification.

The object of this invention is the construction of abell-pnll which may be easily and firm- .l y secured to a wall, and to obviate the necessity of using a wooden plug at the outer surface of the wall as a means for forming the connection between the same and the bellpull.

In the accompanying drawings, forming a part hereof, Figure I is a longitudinal section of the invention, showing the same secured in a wall. Fig. II is a cross-section of the invention, taken on the dotted line a" :r, Fig. I, shown enlarged. the invention, also enlarged.

Similar letters of reference indicate similar parts in all the views.

A is apipe threaded at its ends,and secured in the wall I3 by means of the plates to and Z), into the hubs of which it is screwed. The plate alias wings 0,which are embedded inthe brick-work to prevent its turning. The plate I), which is devoid of wings, is screwed on the pipe until its under side is drawn closely in contact with the inner door-frame, and the pipe A. firmly locked.

I) is the knob, and E the stem of the bellpull, to which the wire F is fastened. The wire F is also attached to the upper end of a lever, G, pivoted in the plate I) at (I, and the lower end of the lever G is secured to the Fig. III is a rear view of (No model.)

wire II, which extends through the house to the bell. A spring, 6, on the stem E is confined endwise between the shoulder fin the plate a and a pin, which. passes through the stem; and to limit longitudinal movement of the knob and stem and prevent undue strain being placed on the wires, a second shoulder, 71, is formed in the platen, against which the pin strikes.

\Vhen myim nroved loll-pull is to be applied to a housein course of erection, the pipe A is built in the wall, or a hole suitable for the reception of the pipe is formed in the wall by building around a plug slightly larger than the pipe, and then withdrawing it.

From the foregoing description it will be seen that the bell-pull is securely fastened to the wall, and cannot be rei'noved therefrom except by first unscrewing the plate b, and that no undue strain can be placed upon the wires to break them.

I claim as my invention- In a bell-pull, the combination of a pipeextending tillOU'gll the wall,with'a plate secured at each end to prevent its removal, a knob having a stem with a coiled spring around it, apin to limit the movement of the stem, a lever pivoted to the inner securing-plate, and

a wire to connect the stem and the said lever,

substantially as specified.

JNO. 1?. ,BOYIE.

\Vi tn esses:

EDW. J. Drocs, JOHN W'ILLIAMs.v 

